I believe I have discovered an apparent edge case in the Eclipse detection routine (using Python wrapper). I have a standard mid-inclination orbit propagated for 180 days and am searching for umbra events as follows:

```
umbra_logger = EventsLogger()
orekit_ephemeris = Ephemeris(orekit_sc_states, 10)
umbra_detector = EclipseDetector(sun, Constants.WGS84_EARTH_EQUATORIAL_RADIUS, earth).withUmbra().withHandler(RecordAndContinue())
orekit_ephemeris.addEventDetector(umbra_detector)
orekit_ephemeris.addEventDetector(umbra_logger.monitorDetector(umbra_detector))
result = orekit_ephemeris.propagate(orekit_ephemeris.getMaxDate())
```

but the routine fails on the last line with the following error:

```
JavaError: <super: <class 'JavaError'>, <JavaError object>>
Java stacktrace:
org.orekit.errors.OrekitException: point is inside ellipsoid
at org.orekit.bodies.Ellipsoid.pointOnLimb(Ellipsoid.java:251)
at org.orekit.propagation.events.EclipseDetector.g(EclipseDetector.java:182)
at org.orekit.propagation.events.EventState.g(EventState.java:153)
at org.orekit.propagation.events.EventState.lambda$findRoot$0(EventState.java:314)
at org.hipparchus.analysis.solvers.BaseAbstractUnivariateSolver.computeObjectiveValue(BaseAbstractUnivariateSolver.java:166)
at org.hipparchus.analysis.solvers.BracketingNthOrderBrentSolver.doSolveInterval(BracketingNthOrderBrentSolver.java:297)
at org.hipparchus.analysis.solvers.BracketingNthOrderBrentSolver.solveInterval(BracketingNthOrderBrentSolver.java:426)
at org.hipparchus.analysis.solvers.BracketedUnivariateSolver.solveInterval(BracketedUnivariateSolver.java:126)
at org.orekit.propagation.events.EventState.findRoot(EventState.java:320)
at org.orekit.propagation.events.EventState.evaluateStep(EventState.java:218)
at org.orekit.propagation.analytical.AbstractAnalyticalPropagator.acceptStep(AbstractAnalyticalPropagator.java:311)
at org.orekit.propagation.analytical.AbstractAnalyticalPropagator.propagate(AbstractAnalyticalPropagator.java:168)
at org.orekit.propagation.AbstractPropagator.propagate(AbstractPropagator.java:260)
```

Interestingly, if I change the Ephemeris interpolation point setting from **10** to **5** or **2**, the run succeeds and no error is produced. I also tried a value of **30** but the same error manifested. I am unsure why the error production is dependent on the number of Ephemeris interpolation points nor what exactly the **org.orekit.errors.OrekitException: point is inside ellipsoid** error is suggesting. I unsuccessfully searched the documentation and code for answers so was hoping someone could point me in the right direction to determine what the root cause is or suggest what sort of edge case may be occurring here. Is a value of **10** too much for Ephemeris interpolation? Running many other mid inclination orbits or sun synchronous orbits with similar initial conditions work just fine…but for some reason this one ephemeris produces the above behavior and I am unsure where to look to understand this better.